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Each of these questions has a problem and two statements, number I and II. Decide if the information given in the statement is sufficient for answering the problem. Mark the answer as
What is the ratio of men to women rolled in a certain class?
I. The number of women enrolled in the class is 3 less than half the number of men enrolled.
II. The number of women enrolled in the class is $$\frac{2}{5}$$ of the number of men enrolled.
Let number of men and women enrolled be $$m$$ and $$w$$ respectively.
Statement I : $$w+3=\frac{m}{2}$$
=> $$m=2w+6$$
Since, we cannot find $$m:w$$, thus, statement I alone is insufficient.
Statement II : $$w=\frac{2}{5}\times m$$
=> $$\frac{m}{w}=\frac{5}{2}$$
Thus, statement II alone is sufficient to find the required ratio.
=> Ans - (B)
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